Tiantsoa Rakotomanga Rajaonah defeated Janice Tjen in the final, 6–3, 6–4 to win the singles tennis title at the 2025 SP Open. She saved three match points en route to her first WTA Tour title, in her first-round match against Ana Sofía Sánchez. Rakotomanga Rajaonah was the youngest Frenchwoman to win a WTA Tour title since Océane Dodin in 2016. Tjen was the first Indonesian to reach a WTA Tour singles final since Angelique Widjaja in 2002.